Whispering Brook, NH
Above the federal action level
Latest 90th-percentile lead: 34 ppb (monitoring period 2024-2024). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. In the most recent monitoring period, more than 10% of the sampled homes measured above 15 ppb. Use a filter certified to NSF/ANSI 53 for lead for drinking and cooking now, and test your own tap.
Whispering Brook at a glance
Whispering Brook serves about 30 people through 12 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Carroll County, New Hampshire. EPA system ID: NH0162310. Ask the utility on your bill for your address in their service line inventory.
Every lead result on file
That is up 18 ppb from 16 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Whispering Brook is 284 ppb across 3 monitoring periods, 3 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 34 ppb over 15 |
| 2023 | 16 ppb over 15 |
| 2023 | 284 ppb over 15 |
Against other New Hampshire systems
Of the 124 New Hampshire systems with a lead result, the median latest reading is 16 ppb; 62 are over 15 ppb right now and 64 have gone over at some point. Whispering Brook's 34 ppb sits at the 80th percentile in New Hampshire and the 100th nationally (higher means more lead).
Neighbouring systems
103 other systems share Carroll County; 7 of them have a higher latest lead result than Whispering Brook. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Wolfeboro Water And Sewer | 6,000 | 2 ppb |
| North Conway Water Pct | 5,500 | 8 ppb |
| Lower Bartlett Water Pct | 3,850 | 1 ppb |
| Conway Water And Sewer | 2,745 | - |
| Paradise Shores | 2,060 | - |
| Sanbornville Water Dept | 1,425 | - |
| Village District Of Eidelweiss | 1,200 | - |
| Ossipee Water Dept | 860 | 19 ppb |
| River Run Condos | 750 | 20 ppb |
| Bartlett Village Pct | 625 | - |
Your move
Use a filter certified to NSF/ANSI 53 for lead on the tap you drink and cook from, now, before you test. Then test your own tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Whispering Brook whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. What a 90th-percentile result does and does not tell you: how to read a lead result. Size matters more than most people expect: small vs large water systems.